【摘要】 本文讨论了结构系统阻尼的随机性，运用运动微分方程和二阶摄动法对具有随机阻尼的结构系统在地震荷载和风荷载作用下的动力响应进行了计算，给出随机阻尼对结构响应的影响。结果表明，随机阻尼对结构的位移、速度和加速度的影响的确存在，特别是阻尼的变异系数较大对结构的动力响应影响更为明显，应引起结构设计者的足够重视。更多还原

【Abstract】 The random characteristic of structural damping is discussed. The differential equation of motion is applied to a second-order perturbation technique. The effects of damping variability on the dynadric response of structural systems subjected to wind and earthquake loading are exaAnned. Finally, the variances of structural response are discussed with different CoV of damping. It is obviously shown that uncertain damping shouldn’ t be ignored.更多还原